V2 working

apps/RenderCadenceCompositor/telemetry/TelemetryPrinter.h

@@ -0,0 +1,86 @@
+#pragma once
+
+#include "CadenceTelemetry.h"
+
+#include <atomic>
+#include <chrono>
+#include <iomanip>
+#include <iostream>
+#include <thread>
+
+namespace RenderCadenceCompositor
+{
+struct TelemetryPrinterConfig
+{
+	std::chrono::milliseconds interval = std::chrono::seconds(1);
+};
+
+class TelemetryPrinter
+{
+public:
+	explicit TelemetryPrinter(TelemetryPrinterConfig config = TelemetryPrinterConfig()) :
+		mConfig(config)
+	{
+	}
+
+	TelemetryPrinter(const TelemetryPrinter&) = delete;
+	TelemetryPrinter& operator=(const TelemetryPrinter&) = delete;
+
+	~TelemetryPrinter()
+	{
+		Stop();
+	}
+
+	template <typename SystemFrameExchange, typename OutputThread>
+	void Start(const SystemFrameExchange& exchange, const DeckLinkOutput& output, const OutputThread& outputThread)
+	{
+		if (mRunning)
+			return;
+		mStopping = false;
+		mThread = std::thread([this, &exchange, &output, &outputThread]() {
+			CadenceTelemetry telemetry;
+			while (!mStopping)
+			{
+				std::this_thread::sleep_for(mConfig.interval);
+				Print(telemetry.Sample(exchange, output, outputThread));
+			}
+		});
+		mRunning = true;
+	}
+
+	void Stop()
+	{
+		mStopping = true;
+		if (mThread.joinable())
+			mThread.join();
+		mRunning = false;
+	}
+
+private:
+	static void Print(const CadenceTelemetrySnapshot& snapshot)
+	{
+		std::cout << std::fixed << std::setprecision(1)
+			<< "renderFps=" << snapshot.renderFps
+			<< " scheduleFps=" << snapshot.scheduleFps
+			<< " free=" << snapshot.freeFrames
+			<< " completed=" << snapshot.completedFrames
+			<< " scheduled=" << snapshot.scheduledFrames
+			<< " completedPollMisses=" << snapshot.completedPollMisses
+			<< " scheduleFailures=" << snapshot.scheduleFailures
+			<< " completions=" << snapshot.completions
+			<< " late=" << snapshot.displayedLate
+			<< " dropped=" << snapshot.dropped
+			<< " decklinkBuffered=";
+		if (snapshot.deckLinkBufferedAvailable)
+			std::cout << snapshot.deckLinkBuffered;
+		else
+			std::cout << "n/a";
+		std::cout << " scheduleCallMs=" << snapshot.deckLinkScheduleCallMilliseconds << "\n";
+	}
+
+	TelemetryPrinterConfig mConfig;
+	std::thread mThread;
+	std::atomic<bool> mStopping{ false };
+	std::atomic<bool> mRunning{ false };
+};
+}